You should always have 4 of these in your deck, no instants or sorceries, only very high mana massive creatures and artifacts and only 60 cards in the deck (Very important). mulligan your first hand.. whatever is in it!! Then if you do not draw a warp world in the second draw, mulligan again until you do!! When you have a warp world and have enough mana to play it, you will get everything for free.